Well, they are my first set of adjustable control arms but I can say this ... They are well built, look very stout and look good, so to answer your question ... they seem to be a very good option for anyone looking for adjustable control arms, and at that price and with a lifetime warranty I don't see how you could go wrong.
Thanks for the feedback @CodaMan !
I compared vs the RE 3801 and decide to go with the Core due they are something different and new. Was inclined to get them but the rear upper not been double adjustable held me.
I do read on Facebook last Saturday or Sunday that they will be increasing the price so I may need to pull the trigger soon.